<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Worksheet
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    1.8.0, 2014-03-02
 */

/**
 * PHPExcel_Worksheet_PageSetup
 *
 * <code>
 * Paper size taken from Office Open XML Part 4 - Markup Language Reference, page 1988:
 *
 * 1 = Letter paper (8.5 in. by 11 in.)
 * 2 = Letter small paper (8.5 in. by 11 in.)
 * 3 = Tabloid paper (11 in. by 17 in.)
 * 4 = Ledger paper (17 in. by 11 in.)
 * 5 = Legal paper (8.5 in. by 14 in.)
 * 6 = Statement paper (5.5 in. by 8.5 in.)
 * 7 = Executive paper (7.25 in. by 10.5 in.)
 * 8 = A3 paper (297 mm by 420 mm)
 * 9 = A4 paper (210 mm by 297 mm)
 * 10 = A4 small paper (210 mm by 297 mm)
 * 11 = A5 paper (148 mm by 210 mm)
 * 12 = B4 paper (250 mm by 353 mm)
 * 13 = B5 paper (176 mm by 250 mm)
 * 14 = Folio paper (8.5 in. by 13 in.)
 * 15 = Quarto paper (215 mm by 275 mm)
 * 16 = Standard paper (10 in. by 14 in.)
 * 17 = Standard paper (11 in. by 17 in.)
 * 18 = Note paper (8.5 in. by 11 in.)
 * 19 = #9 envelope (3.875 in. by 8.875 in.)
 * 20 = #10 envelope (4.125 in. by 9.5 in.)
 * 21 = #11 envelope (4.5 in. by 10.375 in.)
 * 22 = #12 envelope (4.75 in. by 11 in.)
 * 23 = #14 envelope (5 in. by 11.5 in.)
 * 24 = C paper (17 in. by 22 in.)
 * 25 = D paper (22 in. by 34 in.)
 * 26 = E paper (34 in. by 44 in.)
 * 27 = DL envelope (110 mm by 220 mm)
 * 28 = C5 envelope (162 mm by 229 mm)
 * 29 = C3 envelope (324 mm by 458 mm)
 * 30 = C4 envelope (229 mm by 324 mm)
 * 31 = C6 envelope (114 mm by 162 mm)
 * 32 = C65 envelope (114 mm by 229 mm)
 * 33 = B4 envelope (250 mm by 353 mm)
 * 34 = B5 envelope (176 mm by 250 mm)
 * 35 = B6 envelope (176 mm by 125 mm)
 * 36 = Italy envelope (110 mm by 230 mm)
 * 37 = Monarch envelope (3.875 in. by 7.5 in.).
 * 38 = 6 3/4 envelope (3.625 in. by 6.5 in.)
 * 39 = US standard fanfold (14.875 in. by 11 in.)
 * 40 = German standard fanfold (8.5 in. by 12 in.)
 * 41 = German legal fanfold (8.5 in. by 13 in.)
 * 42 = ISO B4 (250 mm by 353 mm)
 * 43 = Japanese double postcard (200 mm by 148 mm)
 * 44 = Standard paper (9 in. by 11 in.)
 * 45 = Standard paper (10 in. by 11 in.)
 * 46 = Standard paper (15 in. by 11 in.)
 * 47 = Invite envelope (220 mm by 220 mm)
 * 50 = Letter extra paper (9.275 in. by 12 in.)
 * 51 = Legal extra paper (9.275 in. by 15 in.)
 * 52 = Tabloid extra paper (11.69 in. by 18 in.)
 * 53 = A4 extra paper (236 mm by 322 mm)
 * 54 = Letter transverse paper (8.275 in. by 11 in.)
 * 55 = A4 transverse paper (210 mm by 297 mm)
 * 56 = Letter extra transverse paper (9.275 in. by 12 in.)
 * 57 = SuperA/SuperA/A4 paper (227 mm by 356 mm)
 * 58 = SuperB/SuperB/A3 paper (305 mm by 487 mm)
 * 59 = Letter plus paper (8.5 in. by 12.69 in.)
 * 60 = A4 plus paper (210 mm by 330 mm)
 * 61 = A5 transverse paper (148 mm by 210 mm)
 * 62 = JIS B5 transverse paper (182 mm by 257 mm)
 * 63 = A3 extra paper (322 mm by 445 mm)
 * 64 = A5 extra paper (174 mm by 235 mm)
 * 65 = ISO B5 extra paper (201 mm by 276 mm)
 * 66 = A2 paper (420 mm by 594 mm)
 * 67 = A3 transverse paper (297 mm by 420 mm)
 * 68 = A3 extra transverse paper (322 mm by 445 mm)
 * </code>
 *
 * @category PHPExcel
 * @package PHPExcel_Worksheet
 * @copyright Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Worksheet_PageSetup
{

    /* Paper size */
    const PAPERSIZE_LETTER = 1;

    const PAPERSIZE_LETTER_SMALL = 2;

    const PAPERSIZE_TABLOID = 3;

    const PAPERSIZE_LEDGER = 4;

    const PAPERSIZE_LEGAL = 5;

    const PAPERSIZE_STATEMENT = 6;

    const PAPERSIZE_EXECUTIVE = 7;

    const PAPERSIZE_A3 = 8;

    const PAPERSIZE_A4 = 9;

    const PAPERSIZE_A4_SMALL = 10;

    const PAPERSIZE_A5 = 11;

    const PAPERSIZE_B4 = 12;

    const PAPERSIZE_B5 = 13;

    const PAPERSIZE_FOLIO = 14;

    const PAPERSIZE_QUARTO = 15;

    const PAPERSIZE_STANDARD_1 = 16;

    const PAPERSIZE_STANDARD_2 = 17;

    const PAPERSIZE_NOTE = 18;

    const PAPERSIZE_NO9_ENVELOPE = 19;

    const PAPERSIZE_NO10_ENVELOPE = 20;

    const PAPERSIZE_NO11_ENVELOPE = 21;

    const PAPERSIZE_NO12_ENVELOPE = 22;

    const PAPERSIZE_NO14_ENVELOPE = 23;

    const PAPERSIZE_C = 24;

    const PAPERSIZE_D = 25;

    const PAPERSIZE_E = 26;

    const PAPERSIZE_DL_ENVELOPE = 27;

    const PAPERSIZE_C5_ENVELOPE = 28;

    const PAPERSIZE_C3_ENVELOPE = 29;

    const PAPERSIZE_C4_ENVELOPE = 30;

    const PAPERSIZE_C6_ENVELOPE = 31;

    const PAPERSIZE_C65_ENVELOPE = 32;

    const PAPERSIZE_B4_ENVELOPE = 33;

    const PAPERSIZE_B5_ENVELOPE = 34;

    const PAPERSIZE_B6_ENVELOPE = 35;

    const PAPERSIZE_ITALY_ENVELOPE = 36;

    const PAPERSIZE_MONARCH_ENVELOPE = 37;

    const PAPERSIZE_6_3_4_ENVELOPE = 38;

    const PAPERSIZE_US_STANDARD_FANFOLD = 39;

    const PAPERSIZE_GERMAN_STANDARD_FANFOLD = 40;

    const PAPERSIZE_GERMAN_LEGAL_FANFOLD = 41;

    const PAPERSIZE_ISO_B4 = 42;

    const PAPERSIZE_JAPANESE_DOUBLE_POSTCARD = 43;

    const PAPERSIZE_STANDARD_PAPER_1 = 44;

    const PAPERSIZE_STANDARD_PAPER_2 = 45;

    const PAPERSIZE_STANDARD_PAPER_3 = 46;

    const PAPERSIZE_INVITE_ENVELOPE = 47;

    const PAPERSIZE_LETTER_EXTRA_PAPER = 48;

    const PAPERSIZE_LEGAL_EXTRA_PAPER = 49;

    const PAPERSIZE_TABLOID_EXTRA_PAPER = 50;

    const PAPERSIZE_A4_EXTRA_PAPER = 51;

    const PAPERSIZE_LETTER_TRANSVERSE_PAPER = 52;

    const PAPERSIZE_A4_TRANSVERSE_PAPER = 53;

    const PAPERSIZE_LETTER_EXTRA_TRANSVERSE_PAPER = 54;

    const PAPERSIZE_SUPERA_SUPERA_A4_PAPER = 55;

    const PAPERSIZE_SUPERB_SUPERB_A3_PAPER = 56;

    const PAPERSIZE_LETTER_PLUS_PAPER = 57;

    const PAPERSIZE_A4_PLUS_PAPER = 58;

    const PAPERSIZE_A5_TRANSVERSE_PAPER = 59;

    const PAPERSIZE_JIS_B5_TRANSVERSE_PAPER = 60;

    const PAPERSIZE_A3_EXTRA_PAPER = 61;

    const PAPERSIZE_A5_EXTRA_PAPER = 62;

    const PAPERSIZE_ISO_B5_EXTRA_PAPER = 63;

    const PAPERSIZE_A2_PAPER = 64;

    const PAPERSIZE_A3_TRANSVERSE_PAPER = 65;

    const PAPERSIZE_A3_EXTRA_TRANSVERSE_PAPER = 66;

    /* Page orientation */
    const ORIENTATION_DEFAULT = 'default';

    const ORIENTATION_LANDSCAPE = 'landscape';

    const ORIENTATION_PORTRAIT = 'portrait';

    /* Print Range Set Method */
    const SETPRINTRANGE_OVERWRITE = 'O';

    const SETPRINTRANGE_INSERT = 'I';

    /**
     * Paper size
     *
     * @var int
     */
    private $_paperSize = PHPExcel_Worksheet_PageSetup::PAPERSIZE_LETTER;

    /**
     * Orientation
     *
     * @var string
     */
    private $_orientation = PHPExcel_Worksheet_PageSetup::ORIENTATION_DEFAULT;

    /**
     * Scale (Print Scale)
     *
     * Print scaling. Valid values range from 10 to 400
     * This setting is overridden when fitToWidth and/or fitToHeight are in use
     *
     * @var int?
     */
    private $_scale = 100;

    /**
     * Fit To Page
     * Whether scale or fitToWith / fitToHeight applies
     *
     * @var boolean
     */
    private $_fitToPage = FALSE;

    /**
     * Fit To Height
     * Number of vertical pages to fit on
     *
     * @var int?
     */
    private $_fitToHeight = 1;

    /**
     * Fit To Width
     * Number of horizontal pages to fit on
     *
     * @var int?
     */
    private $_fitToWidth = 1;

    /**
     * Columns to repeat at left
     *
     * @var array Containing start column and end column, empty array if option unset
     */
    private $_columnsToRepeatAtLeft = array(
        '',
        ''
    );

    /**
     * Rows to repeat at top
     *
     * @var array Containing start row number and end row number, empty array if option unset
     */
    private $_rowsToRepeatAtTop = array(
        0,
        0
    );

    /**
     * Center page horizontally
     *
     * @var boolean
     */
    private $_horizontalCentered = FALSE;

    /**
     * Center page vertically
     *
     * @var boolean
     */
    private $_verticalCentered = FALSE;

    /**
     * Print area
     *
     * @var string
     */
    private $_printArea = NULL;

    /**
     * First page number
     *
     * @var int
     */
    private $_firstPageNumber = NULL;

    /**
     * Create a new PHPExcel_Worksheet_PageSetup
     */
    public function __construct()
    {}

    /**
     * Get Paper Size
     *
     * @return int
     */
    public function getPaperSize()
    {
        return $this->_paperSize;
    }

    /**
     * Set Paper Size
     *
     * @param int $pValue            
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setPaperSize($pValue = PHPExcel_Worksheet_PageSetup::PAPERSIZE_LETTER)
    {
        $this->_paperSize = $pValue;
        return $this;
    }

    /**
     * Get Orientation
     *
     * @return string
     */
    public function getOrientation()
    {
        return $this->_orientation;
    }

    /**
     * Set Orientation
     *
     * @param string $pValue            
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setOrientation($pValue = PHPExcel_Worksheet_PageSetup::ORIENTATION_DEFAULT)
    {
        $this->_orientation = $pValue;
        return $this;
    }

    /**
     * Get Scale
     *
     * @return int?
     */
    public function getScale()
    {
        return $this->_scale;
    }

    /**
     * Set Scale
     *
     * Print scaling. Valid values range from 10 to 400
     * This setting is overridden when fitToWidth and/or fitToHeight are in use
     *
     * @param int? $pValue            
     * @param boolean $pUpdate
     *            Update fitToPage so scaling applies rather than fitToHeight / fitToWidth
     * @return PHPExcel_Worksheet_PageSetup
     * @throws PHPExcel_Exception
     */
    public function setScale($pValue = 100, $pUpdate = true)
    {
        // Microsoft Office Excel 2007 only allows setting a scale between 10 and 400 via the user interface,
        // but it is apparently still able to handle any scale >= 0, where 0 results in 100
        if (($pValue >= 0) || is_null($pValue)) {
            $this->_scale = $pValue;
            if ($pUpdate) {
                $this->_fitToPage = false;
            }
        } else {
            throw new PHPExcel_Exception("Scale must not be negative");
        }
        return $this;
    }

    /**
     * Get Fit To Page
     *
     * @return boolean
     */
    public function getFitToPage()
    {
        return $this->_fitToPage;
    }

    /**
     * Set Fit To Page
     *
     * @param boolean $pValue            
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setFitToPage($pValue = TRUE)
    {
        $this->_fitToPage = $pValue;
        return $this;
    }

    /**
     * Get Fit To Height
     *
     * @return int?
     */
    public function getFitToHeight()
    {
        return $this->_fitToHeight;
    }

    /**
     * Set Fit To Height
     *
     * @param int? $pValue            
     * @param boolean $pUpdate
     *            Update fitToPage so it applies rather than scaling
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setFitToHeight($pValue = 1, $pUpdate = TRUE)
    {
        $this->_fitToHeight = $pValue;
        if ($pUpdate) {
            $this->_fitToPage = TRUE;
        }
        return $this;
    }

    /**
     * Get Fit To Width
     *
     * @return int?
     */
    public function getFitToWidth()
    {
        return $this->_fitToWidth;
    }

    /**
     * Set Fit To Width
     *
     * @param int? $pValue            
     * @param boolean $pUpdate
     *            Update fitToPage so it applies rather than scaling
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setFitToWidth($pValue = 1, $pUpdate = TRUE)
    {
        $this->_fitToWidth = $pValue;
        if ($pUpdate) {
            $this->_fitToPage = TRUE;
        }
        return $this;
    }

    /**
     * Is Columns to repeat at left set?
     *
     * @return boolean
     */
    public function isColumnsToRepeatAtLeftSet()
    {
        if (is_array($this->_columnsToRepeatAtLeft)) {
            if ($this->_columnsToRepeatAtLeft[0] != '' && $this->_columnsToRepeatAtLeft[1] != '') {
                return true;
            }
        }
        
        return false;
    }

    /**
     * Get Columns to repeat at left
     *
     * @return array Containing start column and end column, empty array if option unset
     */
    public function getColumnsToRepeatAtLeft()
    {
        return $this->_columnsToRepeatAtLeft;
    }

    /**
     * Set Columns to repeat at left
     *
     * @param array $pValue
     *            Containing start column and end column, empty array if option unset
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setColumnsToRepeatAtLeft($pValue = null)
    {
        if (is_array($pValue)) {
            $this->_columnsToRepeatAtLeft = $pValue;
        }
        return $this;
    }

    /**
     * Set Columns to repeat at left by start and end
     *
     * @param string $pStart            
     * @param string $pEnd            
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setColumnsToRepeatAtLeftByStartAndEnd($pStart = 'A', $pEnd = 'A')
    {
        $this->_columnsToRepeatAtLeft = array(
            $pStart,
            $pEnd
        );
        return $this;
    }

    /**
     * Is Rows to repeat at top set?
     *
     * @return boolean
     */
    public function isRowsToRepeatAtTopSet()
    {
        if (is_array($this->_rowsToRepeatAtTop)) {
            if ($this->_rowsToRepeatAtTop[0] != 0 && $this->_rowsToRepeatAtTop[1] != 0) {
                return true;
            }
        }
        
        return false;
    }

    /**
     * Get Rows to repeat at top
     *
     * @return array Containing start column and end column, empty array if option unset
     */
    public function getRowsToRepeatAtTop()
    {
        return $this->_rowsToRepeatAtTop;
    }

    /**
     * Set Rows to repeat at top
     *
     * @param array $pValue
     *            Containing start column and end column, empty array if option unset
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setRowsToRepeatAtTop($pValue = null)
    {
        if (is_array($pValue)) {
            $this->_rowsToRepeatAtTop = $pValue;
        }
        return $this;
    }

    /**
     * Set Rows to repeat at top by start and end
     *
     * @param int $pStart            
     * @param int $pEnd            
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setRowsToRepeatAtTopByStartAndEnd($pStart = 1, $pEnd = 1)
    {
        $this->_rowsToRepeatAtTop = array(
            $pStart,
            $pEnd
        );
        return $this;
    }

    /**
     * Get center page horizontally
     *
     * @return bool
     */
    public function getHorizontalCentered()
    {
        return $this->_horizontalCentered;
    }

    /**
     * Set center page horizontally
     *
     * @param bool $value            
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setHorizontalCentered($value = false)
    {
        $this->_horizontalCentered = $value;
        return $this;
    }

    /**
     * Get center page vertically
     *
     * @return bool
     */
    public function getVerticalCentered()
    {
        return $this->_verticalCentered;
    }

    /**
     * Set center page vertically
     *
     * @param bool $value            
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function setVerticalCentered($value = false)
    {
        $this->_verticalCentered = $value;
        return $this;
    }

    /**
     * Get print area
     *
     * @param int $index
     *            Identifier for a specific print area range if several ranges have been set
     *            Default behaviour, or a index value of 0, will return all ranges as a comma-separated string
     *            Otherwise, the specific range identified by the value of $index will be returned
     *            Print areas are numbered from 1
     * @throws PHPExcel_Exception
     * @return string
     */
    public function getPrintArea($index = 0)
    {
        if ($index == 0) {
            return $this->_printArea;
        }
        $printAreas = explode(',', $this->_printArea);
        if (isset($printAreas[$index - 1])) {
            return $printAreas[$index - 1];
        }
        throw new PHPExcel_Exception("Requested Print Area does not exist");
    }

    /**
     * Is print area set?
     *
     * @param int $index
     *            Identifier for a specific print area range if several ranges have been set
     *            Default behaviour, or an index value of 0, will identify whether any print range is set
     *            Otherwise, existence of the range identified by the value of $index will be returned
     *            Print areas are numbered from 1
     * @return boolean
     */
    public function isPrintAreaSet($index = 0)
    {
        if ($index == 0) {
            return ! is_null($this->_printArea);
        }
        $printAreas = explode(',', $this->_printArea);
        return isset($printAreas[$index - 1]);
    }

    /**
     * Clear a print area
     *
     * @param int $index
     *            Identifier for a specific print area range if several ranges have been set
     *            Default behaviour, or an index value of 0, will clear all print ranges that are set
     *            Otherwise, the range identified by the value of $index will be removed from the series
     *            Print areas are numbered from 1
     * @return PHPExcel_Worksheet_PageSetup
     */
    public function clearPrintArea($index = 0)
    {
        if ($index == 0) {
            $this->_printArea = NULL;
        } else {
            $printAreas = explode(',', $this->_printArea);
            if (isset($printAreas[$index - 1])) {
                unset($printAreas[$index - 1]);
                $this->_printArea = implode(',', $printAreas);
            }
        }
        
        return $this;
    }

    /**
     * Set print area.
     * e.g. 'A1:D10' or 'A1:D10,G5:M20'
     *
     * @param string $value            
     * @param int $index
     *            Identifier for a specific print area range allowing several ranges to be set
     *            When the method is "O"verwrite, then a positive integer index will overwrite that indexed
     *            entry in the print areas list; a negative index value will identify which entry to
     *            overwrite working bacward through the print area to the list, with the last entry as -1.
     *            Specifying an index value of 0, will overwrite <b>all</b> existing print ranges.
     *            When the method is "I"nsert, then a positive index will insert after that indexed entry in
     *            the print areas list, while a negative index will insert before the indexed entry.
     *            Specifying an index value of 0, will always append the new print range at the end of the
     *            list.
     *            Print areas are numbered from 1
     * @param string $method
     *            Determines the method used when setting multiple print areas
     *            Default behaviour, or the "O" method, overwrites existing print area
     *            The "I" method, inserts the new print area before any specified index, or at the end of the list
     * @return PHPExcel_Worksheet_PageSetup
     * @throws PHPExcel_Exception
     */
    public function setPrintArea($value, $index = 0, $method = self::SETPRINTRANGE_OVERWRITE)
    {
        if (strpos($value, '!') !== false) {
            throw new PHPExcel_Exception('Cell coordinate must not specify a worksheet.');
        } elseif (strpos($value, ':') === false) {
            throw new PHPExcel_Exception('Cell coordinate must be a range of cells.');
        } elseif (strpos($value, '$') !== false) {
            throw new PHPExcel_Exception('Cell coordinate must not be absolute.');
        }
        $value = strtoupper($value);
        
        if ($method == self::SETPRINTRANGE_OVERWRITE) {
            if ($index == 0) {
                $this->_printArea = $value;
            } else {
                $printAreas = explode(',', $this->_printArea);
                if ($index < 0) {
                    $index = count($printAreas) - abs($index) + 1;
                }
                if (($index <= 0) || ($index > count($printAreas))) {
                    throw new PHPExcel_Exception('Invalid index for setting print range.');
                }
                $printAreas[$index - 1] = $value;
                $this->_printArea = implode(',', $printAreas);
            }
        } elseif ($method == self::SETPRINTRANGE_INSERT) {
            if ($index == 0) {
                $this->_printArea .= ($this->_printArea == '') ? $value : ',' . $value;
            } else {
                $printAreas = explode(',', $this->_printArea);
                if ($index < 0) {
                    $index = abs($index) - 1;
                }
                if ($index > count($printAreas)) {
                    throw new PHPExcel_Exception('Invalid index for setting print range.');
                }
                $printAreas = array_merge(array_slice($printAreas, 0, $index), array(
                    $value
                ), array_slice($printAreas, $index));
                $this->_printArea = implode(',', $printAreas);
            }
        } else {
            throw new PHPExcel_Exception('Invalid method for setting print range.');
        }
        
        return $this;
    }

    /**
     * Add a new print area (e.g.
     * 'A1:D10' or 'A1:D10,G5:M20') to the list of print areas
     *
     * @param string $value            
     * @param int $index
     *            Identifier for a specific print area range allowing several ranges to be set
     *            A positive index will insert after that indexed entry in the print areas list, while a
     *            negative index will insert before the indexed entry.
     *            Specifying an index value of 0, will always append the new print range at the end of the
     *            list.
     *            Print areas are numbered from 1
     * @return PHPExcel_Worksheet_PageSetup
     * @throws PHPExcel_Exception
     */
    public function addPrintArea($value, $index = -1)
    {
        return $this->setPrintArea($value, $index, self::SETPRINTRANGE_INSERT);
    }

    /**
     * Set print area
     *
     * @param int $column1
     *            Column 1
     * @param int $row1
     *            Row 1
     * @param int $column2
     *            Column 2
     * @param int $row2
     *            Row 2
     * @param int $index
     *            Identifier for a specific print area range allowing several ranges to be set
     *            When the method is "O"verwrite, then a positive integer index will overwrite that indexed
     *            entry in the print areas list; a negative index value will identify which entry to
     *            overwrite working bacward through the print area to the list, with the last entry as -1.
     *            Specifying an index value of 0, will overwrite <b>all</b> existing print ranges.
     *            When the method is "I"nsert, then a positive index will insert after that indexed entry in
     *            the print areas list, while a negative index will insert before the indexed entry.
     *            Specifying an index value of 0, will always append the new print range at the end of the
     *            list.
     *            Print areas are numbered from 1
     * @param string $method
     *            Determines the method used when setting multiple print areas
     *            Default behaviour, or the "O" method, overwrites existing print area
     *            The "I" method, inserts the new print area before any specified index, or at the end of the list
     * @return PHPExcel_Worksheet_PageSetup
     * @throws PHPExcel_Exception
     */
    public function setPrintAreaByColumnAndRow($column1, $row1, $column2, $row2, $index = 0, $method = self::SETPRINTRANGE_OVERWRITE)
    {
        return $this->setPrintArea(PHPExcel_Cell::stringFromColumnIndex($column1) . $row1 . ':' . PHPExcel_Cell::stringFromColumnIndex($column2) . $row2, $index, $method);
    }

    /**
     * Add a new print area to the list of print areas
     *
     * @param int $column1
     *            Start Column for the print area
     * @param int $row1
     *            Start Row for the print area
     * @param int $column2
     *            End Column for the print area
     * @param int $row2
     *            End Row for the print area
     * @param int $index
     *            Identifier for a specific print area range allowing several ranges to be set
     *            A positive index will insert after that indexed entry in the print areas list, while a
     *            negative index will insert before the indexed entry.
     *            Specifying an index value of 0, will always append the new print range at the end of the
     *            list.
     *            Print areas are numbered from 1
     * @return PHPExcel_Worksheet_PageSetup
     * @throws PHPExcel_Exception
     */
    public function addPrintAreaByColumnAndRow($column1, $row1, $column2, $row2, $index = -1)
    {
        return $this->setPrintArea(PHPExcel_Cell::stringFromColumnIndex($column1) . $row1 . ':' . PHPExcel_Cell::stringFromColumnIndex($column2) . $row2, $index, self::SETPRINTRANGE_INSERT);
    }

    /**
     * Get first page number
     *
     * @return int
     */
    public function getFirstPageNumber()
    {
        return $this->_firstPageNumber;
    }

    /**
     * Set first page number
     *
     * @param int $value            
     * @return PHPExcel_Worksheet_HeaderFooter
     */
    public function setFirstPageNumber($value = null)
    {
        $this->_firstPageNumber = $value;
        return $this;
    }

    /**
     * Reset first page number
     *
     * @return PHPExcel_Worksheet_HeaderFooter
     */
    public function resetFirstPageNumber()
    {
        return $this->setFirstPageNumber(null);
    }

    /**
     * Implement PHP __clone to create a deep clone, not just a shallow copy.
     */
    public function __clone()
    {
        $vars = get_object_vars($this);
        foreach ($vars as $key => $value) {
            if (is_object($value)) {
                $this->$key = clone $value;
            } else {
                $this->$key = $value;
            }
        }
    }
}
